Hiria, Kateryna. “Historiography of the Question of Zaporizia and Don Cossack Relations (the End of XVth - the Beginning of the XVIIIth Century) in 20-30th Years of XXth Century”. Skhid, no. 6(158) (January 26, 2019): 83–89. Accessed November 27, 2021. http://skhid.kubg.edu.ua/article/view/154880.